The Superman Family was prolific in having their tales chronicled, and not only alongside their most famous member. At least on Earth-One, as its members operated just as well individually as collectively like the Marvel Family.
On Earth-Two, there wasn't a "Superman's Pal...Jimmy Olsen" or the "Daring New Adventures of Supergirl" and the like. Sure, they had their own red-haired cub reporter, Girl of Steel (Power Girl, whose only solo tales were in "Showcase" #97-99), and our the Metropolis Marvel's one true love. Nevertheless, there were adventures on Kal-L's world that offset those near-and-dear on Kal-El's world, even if their participants weren't Halk Kar of Thoron, James Olsen of Metropolis, the Masked Wonder of Smallville or Kara Zor-L of Kandor.
In place of Lar Gand aka Mon-El who fought alongside Superboy and the Legion of Super-Heroes in the 30th Century, there was Captain Triumph who had similar abilities fighting alongside Superman in the All-Star Squadron. Other legacy characters were Eltro Gand and Halk Kar who met his Superman on one adventure with Halk's tale paralleling Lar's first encounter with the Boy of Steel. While Halk eventually returned to native Thoron, Eltro would assumed Lar's heroic career, merging minds with his phantom ancestor, this paralleled when Lance and Michael Gallant merged minds to become Captain Triumph for years worth of adventures, Michael the counterpart to Lar's brother and Eltro's ancestor.
And rather than the bizarre mis-adventures of "Superman's Pal", wherein Jimmy Olsen was transformed by all manner of strange occurrences including a female 5th dimensional imp while wearing his trademark green suits... there was the wacky tales of the Justice Society's mascot Johnny Thunder, who's every wish and whim was turned on its head by an imp from the Thunderbolt Dimension. And Jimmy's latter day tales, when he teamed up with the Golden Guardian and the Newsboy Legion on Earth-One would be mirrored by the original Earth-Two adventures of the first Guardian and the Legion's parents, themselves children at the time.
Instead of the adventures of the younger adolescent Superboy, there were the tales Earth-Two's Doctor Occult who looked exactly like the Boy of Steel and had a similar costume to his at one point... and himself had all the powers of a Kryptonian while being the counterpart of Lord Satanis who himself merged with Superboy's adult version as a separate entity like the Doctor. The Doctor would operate for decades, mostly behind-the-scenes, and was a precursor to his world's Superman as was Superboy.
And the various series headlined by the blonde bombshell known as Supergirl aka Linda Danvers were mirrored by those of her Earth-Two counterpart Power Girl. aka Karen Starr. However, while Linda had mostly solo series in Action Comics, then Adventure Comics, then her first series followed by Superman Family and her concluded self-titled series... Karen was featured alongside the Justice Society of America in stories chronicled in All-Star Comics followed by World's Finest Comics and later Infinity Inc. It was with Karen's Infinity allies that her career path mirrored Linda's with the Legion of Super-Heroes, as both were honorary members appearing only on occasion with these lads and lasses. While Linda perished during the Crisis on Infinite Earths, although she had a composite clone who still existed, Karen's existence was transferred in a new post-Crisis Earth where Linda ceased to exist. Simultaneously, in the original concurrent Earth-Two reality, a Power Girl continued to exist there as well. Hence she split in two as had Linda with her clone, and Karen's hundreds of adventures after the Crisis until she returned to her home universe let her life Linda's life and hence have all of Supergirl's adventures in place of her.
Then there was that one true love, Lois Lane, who had golden age adventures in the backpages of Superman starting in issue #29 through #42, before graduating into a co-star in the Mr. and Mrs. Superman tales in a few issues of "Action Comics" and "Superman" before their continuing series featured in Superman Family #195-222. Although not nearly the volume of cases that her Earth-One counterpart had in "Superman's Girl Friend Lois Lane" #1-137, this would be compensated by the adventures of a contemporary of Earth-Two's Lois in Libby Lawrence. Libby, also a news reporter, had an alter ego as Liberty Belle, and had dozens of her own tales in Boy Commandos and Star-Spangled Comics.